WPF的动画程序。部分特效，物理运动模拟，storyboard使用，动作控制，路经动画，多个单位互动。,WPF animation process. Some special effects, the physical motion simulation, storyboard use, motion control, via animation, interactive multiple units.

WPF 鼠标拖拽功能，自定义拖拽的跟随图形，不再是一个虚线的系统的小标志，而是具体所拖拽的对象的图形，比如拖一个button，后面跟随的就是一个button的形状。-WPF mouse drag and drop, drag the following custom graphics, broken system is no longer a small sign, but concrete by dragging a graphical object, such as dragging a b